The ecobee3 from ecobee is compatible with 93% of North American residential heating and cooling systems. Features include a 3 1/2” full-color LCD touch screen, live weather and five-day forecast; easy installation; and one free remote sensor. It can support up to 32 remote sensors, which measure temperature and occupancy, allowing the thermostat to balance the temperature for optimal comfort in occupied rooms only. It can be monitored and controlled through a smartphone, tablet or computer.